Rotary control for spray-heads for air-washers.



S. R. SHELDON.

ROTARY UDNTROL FOB. SPRAY HEADS FOR AIR WASHERS.

APPLIUATION FILED JULY 30, 1912.

lNVCNTOR.

SP2 SHELDON I QM ATE J.

Patented June 3, 1913.

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Specification of Letters Patent.

Patented June 3, 1913.

Spray-Heads for Air-Washers, of which the following is the specification.

My invention relates to improvements in rotary controls for spray heads for air washers, and the object of the invention is to devise a simple form of rotary control which will convey the water pressure successively to the spray heads (not shown) and relieve the pressure to the atmosphere andit consists essentially of an outer cylindrical casing, a relief pipe extending therefrom to the atmosphere and a pipe leading peripherally to the source of water supply and a series of pipes arranged circumferentially and leading to the spray heads, an inner rotary valve member having 'an annular groove extending. around the periphery thereof, an opening extending through the flange forming one side of the groove in circumferential alinement with the pipe openings leading to the spray heads, a recess formed in the face of the rotary member opposite the relief pipe and into which the pipes leading to the spray heads normally communicates, and means for rotating the rotary member as hereinafter more particularly explained by the following specification.

Figure.1, is a general perspective view of my device. Fig. 2, is a vertical longitudinal section through the outer casing of my devince showing the rotary parts in full. Fig. 3, is a vertical section on line H Fig. 2 and looking toward the rotary member. Fig. 4, is a sectional view of the same looking in the opposite direction. I In the drawings like letters of referen indicate corresponding parts in each figure.

A is a supporting frame.

' A is the cylindrical valve casing provided with lugs A mounted upon the rods of the frame A. The stationary member A is provided with a flange A to which 1s secured a cover A by screws A*.

B is the relief pipe leading into the cen,

ter of the stationary member and in aline-- ment with the axis of rotation of the rotary member.

B is a series of pipes arranged circumtionary casing A.

is provided with a central circumferential Application and July-80, 1912. Serial no. mass.

ferentially around'the pipe B and also leading in to the casing A I? is a vertical supply pipe extending from the peripheral'opening B formed in the stationary casing A.

C is the rotary member provided with the s indle C extending" through the opening formed in the cover A? of the sta- The rotary member C tary member opposite the relief pipe B,

such recess being of such a form that when the opening C is opposite one of the pipe openings B, the remaining pipe openings communicates with the recess C and through the recess to the relief pipe B.

E is a ratchet wheel mounted upon the vided with pawls E designed to engage with the ratchet wheel E so as to imparta rotary.

movement thereto.

Although I show a ratchet and awl mechanism for rotating the spindle it will, of course, be understood that any other means may be employed for imparting a rotary movement't-hereto.

Normallythe water pressure merely extends into the groove C the pressure in the pipes B being relieved through the recess C" to the relief pipe B. In this position the opening C is located between the upper two pipe openin s B indicated by dotted circle 1n Fig. 4. y rotating the member C the opening C is brought opposite one of the openings B allowing the pressure to extend through the openingC and the pipe B to oneof the spray heads, the remain ng pipe opening still being relieved through the recess C, to the pipe B to the atmosphere. It will thus be seen that as the rotary member revolves the pressure extends through the pipes B to the spray heads successively and the pipes are successively relieved of the pressure.

From this description it will be seen that I have devised ayerysimple rotary device whereby water pressure to the spray heads of an air washer may be successively supplied and relieved so as to operate the flushing mechanism of the spray heads, the pipes leading to the spray heads remaining full of water.

What I claim as my invention is:

1. In a rotary control for spray heads for air washers, an outer stationary cylindrical member, a supply pipe leadin into the periphery of the statlonary mem er, and a relief pipe leading axially therefrom, and a series of pipes leading from the stationary member and arranged circumferentially around the relief pipe, a rotary member held within the stationary member, and means in the rotary member for successively establishing communication between the pipes leading from the stationary member and the supply pipe and means for normally establishing communication between the relief pipe and the said pipes leading from the stationary member, and means for rotating the jrotary member as and for the purpose speci- 2. In a rotary control for spray heads for air washers, a cylindrical casing, a supply pipe leading peripherally therefrom, a relief pipe leading axially therefrom, a series of pipes arranged circumferentially around the relief pipe, a rotary member having a peripheral annular groove with which the supply pipe communicates, and an opening leadin tia y in alinement with the openings of said series of pipes, and a recess formed in the base of the rotary member opposite the relief pipe and with which the openings of said series of pipes normally communlcate, and means for rotating the rotary member, as and for the purpose specified.

3. In a device of the type described a casing, a rotary member wlthin said casing, having a erlpheral annular groove, said rotary mem ber also having a lateral passage communicating with said groove, said casing having a supply pipe communicatin with the peripheral annular groove of sai rotary member, said rotary member also having. a recess of mutilated cylindrical outline, the mutilated outline being opposite said lateral passage, aplurality of pipes normally communicating with said recess, said lateral passage adapted to be successively brou ht into communication with the last mentloned pipes, a relief pipe communicating with sa1d recess and means said rotary member.

In testimony whereof I afiix my signature in presence of two witnesses.

SIDNEY RANDOLPH SHELDON.

for. actuating Witnesses ROBERT DONALDSON, J. A. STEPHENSON.

from the annular groove c1rcumferen-' 

